Thanks to TIBCO’s Scott Vorthmann for updating me on the SCA-Assembly-Extensions-for-Event-Processing-and-Pub/Sub draft, which was reported on InfoQ a few months ago. This seems to be mostly an Oracle + IBM effort, and seemingly is occuring outside of OASIS, which seems strange if it is true.
- There is some interesting commentary on its relevence versus the WS-Eventing / -Notification efforts. Possibly all these are together in the same logjam. Some of the associated comments seem to make the case that there is a difference between message processing and event processing – even if most CEP tools utilise messaging systems as transports for events, the appearance of a message *is* an event, etc….
- This SCA effort seems to have similarities with the OMG Event Metamodel and Profile initiative – indeed “SCA-AE4EP&PS” would likely be an input to EMP (if either take off).
- Work seems to be progressing on an initial implementation anyway as a part of the Apache Tuscany project – they have a page on event processing too – but one gets the impression the differences between services, components, and event processing components might be a problem here.